Energy storage charging station assembly for recycling whole pack of retired power battery for vehicle

Abstract

The invention discloses an energy storage charging station assembly for recycling a whole decommissioned power battery pack for a vehicle. The energy storage charging station assembly comprises an energy storage box, a battery pack placing assembly and a battery pack cooling assembly, the battery pack placing assembly comprises a supporting frame and a supporting plate, the supporting frame is arranged in the energy storage box, and the supporting plate is driven to be taken out of or put back from the supporting frame; each group of battery packs is correspondingly arranged on one group of supporting plates; the battery pack cooling assembly comprises a liquid cooling plate arranged on the top surface of the battery pack; the air supply pipeline communicates with an air outlet of the air conditioner cooling system; the air return pipeline communicates with an air return opening of the air conditioner cooling system; the air supply pipeline is provided with an air outlet, and the air return pipeline is provided with an air return opening. A cooling system of the current battery pack can be optimized, so that the environment temperature of the whole box and the use temperature of the battery pack can be in an ideal charging and discharging environment, and the reuse performance of waste batteries is improved; meanwhile, the mounting structure of the battery pack is optimized, the dismounting and maintenance difficulty is reduced, and the product quality is improved.

Description

Technical Field

[0001] The present invention relates to the field of the whole-pack utilization of retired power battery packs, and in particular to an energy storage charging station assembly for the whole-pack reuse of retired power batteries for vehicles. Background Art

[0002] When new energy vehicles first entered the domestic market, the concept of cascade utilization was proposed in order to cope with the craze for retiring power batteries. Subsequently, relevant state departments successively introduced a number of policies to regulate the extension of corporate responsibilities, battery production and trading, use management, disassembly and recycling, and quality and safety assurance. Relevant companies also followed up and began the research and development of battery recycling technology.

[0003] For example, when used in energy storage boxes, the purpose of reducing electricity costs is achieved by staggered charging and discharging of the energy storage boxes. Generally, batteries generate a certain amount of heat when in a discharge state. When the heat is too high and the battery temperature exceeds the temperature range of normal use, the battery performance will be reduced and the battery cycle life will be reduced, especially after the battery packs are stacked and connected in parallel in the energy storage box. Since the air conditioning outlet of the energy storage box is at the top, there is a temperature difference between the top and bottom of the energy storage box. If the ambient temperature is high, and the battery packs generate heat themselves during charging, if necessary cooling measures are not taken, the temperature difference between the battery packs at the top and bottom of the energy storage box will be further widened, and there will be differences when the energy storage box is uniformly charged and discharged. The battery cannot be in an ideal temperature charging and discharging environment, resulting in the reuse life of the battery pack at the bottom of the energy storage box being generally lower than the reuse life of the battery pack at the top of the energy storage box, resulting in frequent replacement of battery packs, and the replacement is difficult and inefficient. The frequent disassembly of the energy storage box has a greater impact on product quality.

[0004] In the prior art, water cooling is also used to cool the battery to assist the active heat dissipation of the battery pack. The cooling method adopted is to simply turn on and off the liquid cooling system of the battery pack. When the cooling function is turned on, the cooling system is in a full-load working state. Moreover, since the number of available cycles of the corresponding coolant in the battery pack is reduced when the used batteries are recycled, the temperature control accuracy of the battery pack is poor, especially the heat dissipation effect of the battery pack in the closed energy storage box is poor, and the thermal impact is large, which affects the charging and discharging of the energy storage battery, so that the battery cannot be in an ideal temperature charging and discharging environment, which is not conducive to controlling the cost of the energy storage station, and multiple maintenance is not conducive to the promotion and application of the energy storage station.

[0005] Therefore, in order to solve the above problems, a storage charging station assembly for the recycling of retired automotive power battery packs is needed, which can optimize the cooling system of the current battery pack so that the ambient temperature of the entire box and the operating temperature of the battery pack can be in an ideal charging and discharging environment, thereby improving the reuse performance of waste batteries and helping to reduce resource loss; at the same time, it can optimize the installation structure of the battery pack, reduce the difficulty of disassembly and maintenance, and improve product quality. Summary of the invention

[0006] In view of this, the purpose of the present invention is to overcome the defects in the prior art and provide a storage charging station assembly for the recycling of retired automotive power battery packs, which can optimize the cooling system of the current battery pack so that the ambient temperature of the entire box and the operating temperature of the battery pack can be in an ideal charging and discharging environment, thereby improving the reuse performance of waste batteries and helping to reduce resource loss; at the same time, it optimizes the installation structure of the battery pack, reduces the difficulty of disassembly and maintenance, and improves product quality.

[0007] The energy storage charging station assembly for recycling the entire package of retired vehicle power batteries of the present invention comprises an energy storage box, a battery pack placement component and a battery pack cooling component;

[0008] The battery pack placement assembly includes a support frame and a pallet, wherein the support frame is arranged in the energy storage box, and the pallet is driven to be taken out of or put back from the support frame;

[0009] The battery pack cooling assembly includes a liquid cooling plate disposed on the top surface of the battery pack;

[0010] The liquid cooling plate has a liquid cooling cavity, and the liquid cooling cavity has a liquid inlet connected to a liquid supply end of a battery pack liquid cooling system and a liquid outlet connected to a liquid return end of the battery pack liquid cooling system;

[0011] The battery pack cooling assembly also includes an air supply duct connected to an air outlet of the air conditioning cooling system and a return air duct connected to an air return outlet of the air conditioning cooling system;

[0012] The liquid cooling plate also has a conducting surface and a heat dissipation surface opposite to each other, the conducting surface is attached to the top surface of the battery pack, and the heat dissipation surface is provided with heat dissipation fins;

[0013] The air supply duct has an air outlet, and the air return duct has an air return outlet, and the air outlet and the air return outlet are arranged opposite to each other in the extension direction of the heat dissipation fins;

[0014] The direction of the coolant flowing in the liquid cooling cavity intersects with the extension direction of the heat dissipation fins;

[0015] The pallets are arranged in groups on the support frame at intervals along the height direction. The energy storage box has a plurality of battery packs stacked in the height direction. The number of battery packs is consistent with the number of pallets. Each group of battery packs is correspondingly arranged on a group of pallets, so that the battery packs can be driven to be taken out of or put back into the support frame.

[0016] A group of liquid cooling plates is correspondingly arranged on each group of battery packs;

[0017] The air supply duct extends in the height direction, and the air supply duct is arranged at the rear side of the end of the liquid cooling plate. An air induction plate for guiding the gas to the air outlet is provided in the air supply duct, and a flow diversion hole is opened on the air induction plate or a flow diversion hole is formed between the air induction plate and the inner wall of the air supply duct;

[0018] The number of air outlets of the air supply duct is consistent with the number of liquid cooling plates, and the air outlets are arranged at the rear end of the liquid cooling plates in a one-to-one correspondence; the number of the air induction plates is consistent with the number of air outlets, and the air induction plates are arranged at the rear end of the air outlets in a one-to-one correspondence;

[0019] The return air duct extends in the height direction, the return air duct is arranged at the front side of the head end of the liquid cooling plate, the number of return air ports of the return air duct is consistent with the number of liquid cooling plates, and the return air ports are arranged at the front end of the liquid cooling plate in a one-to-one correspondence with the liquid cooling plates.

[0020] Furthermore, a storage door that is controlled to be opened or closed is provided at the longitudinal front end of the energy storage box, and the support plate is driven to move in the direction in which the storage door is provided, so that the battery pack carried by the support plate is taken out from the support frame;

[0021] The support plate is inclined downward from front to back, and the inclination angle α does not exceed 3°.

[0022] Furthermore, at least one liquid inlet valve controlled to be opened and closed is correspondingly provided at the liquid inlet of each group of the liquid cooling plates, and at least one liquid outlet valve controlled to be opened and closed is correspondingly provided at the liquid outlet of each group of the liquid cooling plates;

[0023] The battery pack and the liquid cooling plate have a temperature difference. If the temperature difference exceeds 5°C, the liquid inlet valve and the liquid outlet valve are controlled to be opened at the same time; if the temperature difference does not exceed 5°C, the liquid inlet valve and the liquid outlet valve are controlled to be closed at the same time.

[0024] Furthermore, the air induction plate is inclined downward from back to front, the diversion holes are provided on the air induction plate, and the diversion holes provided on adjacent air induction plates are staggered in height direction; the diversion holes staggered on adjacent air induction plates in height direction have an overlapping area.

[0025] Furthermore, the air induction plate is provided with a plurality of diversion holes, the apertures of the plurality of diversion holes gradually decrease from the back to the front, and the spacing between adjacent holes gradually increases from the back to the front;

[0026] The aperture sizes of the plurality of return air vents gradually decrease from bottom to top.

[0027] Furthermore, a spoiler column is arranged in the liquid cooling chamber, and the spoiler column is located in the middle of the horizontal cross-section of the liquid cooling chamber. The spoiler column has a spoiler plate protruding toward the liquid inlet, and the spoiler plates are a plurality of plates arranged at intervals. The spoiler column also has a flow surface protruding toward the liquid outlet.

[0028] Furthermore, the spoiler column is provided with a plurality of functional holes, the plurality of functional holes are spaced apart and distributed on the spoiler column in the height direction, and the functional holes are located between adjacent spoilers;

[0029] The density of the functional holes distributed in the middle of the spoiler column in the height direction exceeds the density of the functional holes distributed at both ends of the spoiler column in the height direction.

[0030] Furthermore, a liquid inlet spoiler and a liquid outlet spoiler are also provided in the liquid cooling chamber;

[0031] The liquid inlet spoiler is a plurality of pieces, and the plurality of liquid inlet spoiler pieces are distributed in an approximately "eight" shape on the inner side of the liquid inlet of the liquid cooling chamber, and the "eight"-shaped narrow opening formed by the plurality of liquid inlet spoiler pieces faces the liquid inlet of the liquid cooling chamber;

[0032] The liquid outlet spoiler is composed of a plurality of pieces, and the plurality of pieces of the liquid outlet spoiler are distributed in an approximately "eight" shape on the inner side of the liquid outlet of the liquid cooling chamber, and the "eight"-shaped narrow opening formed by the plurality of pieces of the liquid outlet spoiler faces the liquid outlet of the liquid cooling chamber.

[0033] Furthermore, the liquid inlet spoiler comprises a left spoiler fin I distributed on the left side of the "eight" shape and a right spoiler fin I distributed on the right side of the "eight" shape;

[0034] Each left spoiler fin I and each right spoiler fin I are arranged opposite to each other to form a front spoiler fin group in an "eight" shape, and the front spoiler fin group is divided into a plurality of groups, and the plurality of groups of the front spoiler fin groups are distributed on the inner side of the liquid inlet in a nested manner along the liquid inlet direction of the liquid inlet; among the front spoiler fin groups distributed on the inner side of the liquid inlet in a nested manner, the next-stage front spoiler fin group is located at the rear side of the previous-stage front spoiler fin group;

[0035] The liquid outlet spoiler comprises a left spoiler fin II distributed on the left side of the "eight" shape and a right spoiler fin II distributed on the right side of the "eight" shape;

[0036] Each left spoiler fin II and each right spoiler fin II are arranged relative to each other to form a group of rear spoiler fin groups in the shape of an "eight", and the rear spoiler fin groups are divided into several groups, and the several groups of rear spoiler fin groups are distributed on the inner side of the liquid outlet in a nested manner along the liquid discharge direction of the liquid outlet; in the rear spoiler fin groups distributed on the inner side of the liquid outlet in a nested manner, the next-level rear spoiler fin group is located on the front side of the previous-level rear spoiler fin group.

[0037] Furthermore, the heat dissipation fins are multiple pieces, and the multiple pieces of heat dissipation fins are arranged in parallel along the set direction I, and the heights of the multiple pieces of heat dissipation fins along the set direction I gradually increase from the middle to both sides;

[0038] The ends of the plurality of heat dissipation fins gradually shrink inward from both sides to the middle along the set direction I;

[0039] The spacing between the heat dissipation fins along the set direction I gradually decreases from the middle to both ends.

[0040] The beneficial effects of the present invention are as follows: the present invention discloses an energy storage charging station assembly for recycling a whole pack of retired automotive power batteries, which can quickly complete the matching and pairing of battery packs through the setting of battery pack placement components, and can obtain an energy storage charging station with better consistency, and the maintenance and overhaul are more convenient, with less heat loss; the setting of the battery pack cooling component can maintain the temperature of the independent battery pack and the temperature of the energy storage charging station within the set range, and can make the battery charging and discharging in the energy storage box body in a charging and discharging environment with an ideal temperature, thereby improving the reuse performance of waste batteries, controlling the cost of recycling retired automotive power batteries, and can also achieve independent cooling of a specified battery pack by opening or closing a set liquid inlet valve, and is suitable for series-parallel charging and discharging of heterogeneous battery packs, battery packs with different capacities, and battery packs with different electric losses in energy storage charging stations, and is suitable for series-parallel combinations of any battery packs in the energy storage box, with strong versatility and good safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0042] Figure 1 It is a structural schematic diagram of the present invention;

[0043] Figure 2 This is a schematic diagram of the main structure of the battery pack installed in the present invention;

[0044] Figure 3 It is a schematic diagram of the side view structure of the battery pack installed in the present invention;

[0045] Figure 4 It is a schematic diagram of the structure inside the liquid cooling plate of the present invention;

[0046] Figure 5 It is a structural schematic diagram of the heat dissipation fin of the present invention;

[0047] Figure 6 It is a structural schematic diagram of the spoiler column of the present invention;

[0048] Figure 7 It is a schematic diagram of the structure of the spoiler of the present invention;

[0049] Figure 8 It is a structural schematic diagram of the air induced draft plate of the present invention. DETAILED DESCRIPTION

[0050] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the main structure of the battery pack installed in the present invention; Figure 3 It is a schematic diagram of the side view structure of the battery pack installed in the present invention; Figure 4 It is a schematic diagram of the structure inside the liquid cooling plate of the present invention; Figure 5 It is a structural schematic diagram of the heat dissipation fin of the present invention; Figure 6 It is a structural schematic diagram of the spoiler column of the present invention; Figure 7 It is a structural schematic diagram of the liquid inlet spoiler of the present invention; Figure 8 It is a schematic diagram of the structure of the air induced draft plate of the present invention, wherein the solid lines and dotted lines are used to represent the schematic diagram of the positions of the diverter holes opened on the adjacent air induced draft plates from top to bottom in the height direction respectively; as shown in the figure, the horizontal direction is the length direction of the energy storage box, the left and right correspond to the horizontal left and right when placed opposite to the warehouse door, the vertical direction is the width direction of the energy storage box, and the front and back correspond to the longitudinal front and back when placed opposite to the warehouse door, which will not be repeated here; the vehicle retired power battery whole pack recycling energy storage charging station assembly in this embodiment includes an energy storage box 001, a battery pack placement component and a battery pack cooling component.

[0051] In this embodiment, the energy storage box 001 adopts a container box body, and the battery pack placement component and the battery pack cooling component are arranged in the box body;

[0052] The longitudinal front end of the energy storage box 001 is provided with a storage compartment door 1 which is controlled to be opened or closed; the storage compartment door 1 is a double-door hinged at the longitudinal front end of the energy storage box 001, and an inspection door 2 is also provided on the energy storage box 001 to further reduce the fluctuation of the temperature difference in the compartment. The door is installed in any of the existing technologies and will not be described in detail here; it is convenient for the staff to observe, control or inspect the internal control system of the energy storage box 001 and the battery pack 002, the safety can be guaranteed, and the controllability of the room environment temperature is higher, the service life of the retired battery pack 002 is guaranteed, and resource consumption is reduced. The service life of the retired battery pack 002 is guaranteed, the use cost can be controlled, and it is more conducive to reducing resource loss.

[0053] The battery pack placement assembly includes a support frame and a support plate 3, wherein the support frame is arranged in the energy storage box 001, and the support plate 3 is driven to be taken out of or put back from the support frame;

[0054] The pallets 3 are arranged in groups on the support frame at intervals along the height direction. The energy storage box 001 has a plurality of battery packs 002 stacked in the height direction. The number of the battery packs 002 is consistent with the number of the pallets 3. Each group of the battery packs 002 is correspondingly arranged on a group of pallets 3, so that the battery packs 002 can be driven to be taken out of or put back into the support frame.

[0055] The support frame includes a support base plate 4 and support columns 5. The support base plate 4 is supported by the support columns 5 to form a plurality of battery pack cells stacked up and down for placing the battery pack 002. The battery pack cells can also form an air guide cavity parallel to the longitudinal direction, so as to further improve the air cooling efficiency of the corresponding battery pack. Each pallet 3 is arranged in a battery pack cell and supported by the support base plate 4. The pallet 3 is driven to move in the direction in which the placement compartment door 1 is set, so that the battery pack 002 carried by the pallet 3 is taken out from the support frame; and the support base plate 4 of this solution is slightly inclined downward from front to back, and the inclination angle does not exceed 3°, so as to ensure that the battery pack 002 is reliably placed on the support frame;

[0056] The bottom of the support plate 3 is provided with moving wheels 6, so as to facilitate the convenient pushing and pulling of the battery pack 002. By optimizing the installation structure of the battery pack 002, the efficiency of taking out and putting back the battery pack 002 is higher, and the difficulty of disassembly and maintenance is reduced. It can also reduce the temperature impact in the energy storage box 001, reduce the temperature fluctuation in the energy storage box 001, improve product quality, and reduce resource loss. In addition, this structure is more convenient for the battery pack 002 to quickly form the energy storage box 001, which is conducive to the reasonable pairing and series-parallel connection of the battery pack 002. Compared with the current complex assembly structure of the battery pack 002 with rough comparison and pairing in series and parallel, the support structure with simpler and more convenient assembly can better improve the accuracy of the series and parallel connection of the battery pack 002, improve the quality and quality of the energy storage box, and can relatively increase the service life of the independent battery pack 002, reduce the failure rate and maintenance rate, and at the same time ensure the safety of the entire energy storage box 001.

[0057] In this embodiment, the battery pack cooling assembly includes a liquid cooling plate 7 arranged on the top surface of the battery pack 002, and a group of liquid cooling plates 7 is correspondingly arranged on each group of battery packs 002 to reach a preset use temperature;

[0058] The liquid cooling plate 7 has a liquid cooling cavity, and the liquid cooling cavity has a liquid inlet 8 connected to the liquid supply end of the liquid cooling system of the battery pack 002 and a liquid outlet 9 connected to the liquid return end of the liquid cooling system of the battery pack 002;

[0059] More preferably, the liquid cooling plate 7 is fitted with the battery pack 002 so that it can directly assist in cooling the battery pack 002, thereby improving the cooling efficiency of the battery pack 002. This solution only shows a group of retired automotive power battery packs 002 stacked from top to bottom in the energy storage box 001. After the battery pack 002 is connected to the energy storage box 001, the battery pack 002 is cooled by its own liquid cooling function and the air conditioning system. The liquid inlet 8 and the liquid outlet 9 of the liquid cooling plate 7 of this solution are connected in parallel to the liquid inlet and the liquid outlet of the battery pack 002. The existing liquid cooling pipeline can be directly used to complete the secondary heat dissipation of the battery pack 002, thereby increasing the heat dissipation efficiency of the battery pack 002; the temperature of the battery pack 002 is controlled within a preset range, thereby reducing the overheating and scrapping of the battery pack 002 due to the inconsistent heat dissipation efficiency of the battery pack 002 in the energy storage box 001, and at the same time, the safety of the energy storage box 001 can be improved.

[0060] Among them, the liquid cooling cavity is formed in the liquid cooling plate 7. In the horizontal section, the size of the liquid cooling plate 7 and the size of the liquid cooling cavity are roughly consistent with the size of the battery pack 002, so as to meet the efficient heat dissipation requirements of the battery pack 002; the horizontal section is a section perpendicular to the height direction, which will not be repeated here.

[0061] In this embodiment, the liquid cooling plate 7 further has a relative conduction surface and a heat dissipation surface, the conduction surface is attached to the top surface of the battery pack 002, and the heat dissipation surface is provided with heat dissipation fins 10; the liquid cooling plate 7 of this solution is arranged on the top of the battery pack 002, and the liquid cooling plate 7 arranges the heat dissipation surface with heat dissipation fins 10 opposite to the conduction surface attached to the top surface of the battery pack 002, so that the heat of the battery pack 002 can be taken away not only through its own liquid cooling system, but also through the liquid cooling plate 7 and the heat dissipation fins 10, thereby improving the heat dissipation efficiency of the battery pack 002 and reducing the problem of difference in reuse life of the battery pack 002 caused by uneven heat dissipation;

[0062] The battery pack cooling assembly also includes an air supply duct 11 connected to an air outlet 13 of an air conditioning cooling system and a return air duct 12 connected to a return air outlet 14 of the air conditioning cooling system; the air conditioning cooling system selects any one of the current existing technologies, which will not be described in detail here; the air supply duct 11 is arranged on the longitudinal rear side of the battery pack 002, and the return air duct 12 is arranged on the longitudinal front side of the battery pack 002, so that the gas flow direction in this scheme is parallel to the longitudinal direction, along the gas flow direction of the air supply duct 11, the air outlet 13 of the air supply duct 11 is at the rear, and the return air outlet 14 of the return air duct 12 is at the front; this structure makes the space utilization rate of the battery pack 002 placement bin in the height direction higher, compared with the current structure of arranging the air conditioning system on the top, it can stack at least one more group of battery packs 002, the structure is more compact, and the heat dissipation effect can ensure the high utilization rate of the battery pack 002, which is far superior to the current top air conditioning outlet cooling structure;

[0063] The air supply duct 11 has an air outlet 13, and the return air duct 12 has a return air outlet 14, and the air outlet 13 and the return air outlet 14 are arranged relatively in the extension direction of the heat dissipation fin 10; the heat dissipation fin 10 is arranged between the two through the correspondingly arranged air outlet 13 and the return air outlet 14, so that the airflow path passes through the heat dissipation fin 10, and the heat of the corresponding battery pack 002 is directly taken away, and the return air outlet 14 also has a certain negative pressure, so that the cooling air is guided and forced to flow through the heat dissipation fins, thereby accelerating the cooling efficiency of the battery pack; when the battery pack 002 is assembled in the energy storage box 001, each battery pack 002 is equipped with the liquid cooling plate of this solution and the corresponding air outlet 13 and return air outlet 14, and the air outlet and return air both rely on the air conditioning cooling system in the original energy storage box 001 Compared with the original air conditioning cooling system in the energy storage box 001, this solution can directly apply cooling air to the battery pack 002, reduce the cooling differentiation of different positions of the battery pack 002, speed up the heat dissipation efficiency of the battery pack 002, increase the heat dissipation efficiency of the battery pack 002, control the temperature of the battery pack 002 within a preset range, reduce the overheating and scrapping of the battery pack 002 caused by the inconsistent heat dissipation efficiency of the battery pack 002 in the energy storage box 001, and at the same time improve the safety of the energy storage box 001, and the heat dissipation of each battery pack 002 can be taken into account, so that the battery in the energy storage box 001 can be charged and discharged in an ideal temperature charging and discharging environment, improve the reuse performance of waste batteries, ensure the service life of waste batteries in cascade utilization, and improve the quality of the energy storage box 001.

[0064] The middle of the air outlet 13 in the height direction is higher than the middle of the air outlet 13 in the height direction, and the middle of the air outlet 13 in the height direction is close to the heat dissipation surface. By relatively arranging the air outlet 13 and the return air outlet 14 and arranging them close to each other in the extension direction of the heat dissipation fins 10, the flow rate of the cooling air can be accelerated, the heat dissipation efficiency of the battery pack 002 can be improved, and the temperature of the environment where the battery pack 002 is located can be maintained within a suitable range. The purpose of the height difference between the air outlet 13 and the return air outlet 14 is to make the cooling air flow direction of the heat dissipation fins 10 tilt from top to bottom, further satisfying the function of efficient air cooling and improving the service life of the battery pack 002.

[0065] In this embodiment, the direction of the coolant flowing in the liquid cooling cavity intersects with the extension direction of the heat dissipation fins 10. This allows the external environment cooling and the internal liquid cooling to intersect, avoiding the concentration of cold and hot areas, and improving the effectiveness of heat dissipation. This solution directly connects the air outlet 13 of the parallel air duct on the air conditioning system inside the energy storage box 001 to the vicinity of the heat dissipation fins 10, and the liquid inlet and outlet of the liquid cooling plate 7 are connected in parallel to the liquid cooling system of the battery pack 002. Relying on the current cooling conditions, efficient cooling of the battery pack 002 is achieved, which is used to quickly cool the battery pack 002, meet the efficient heat dissipation of the battery pack 002 by the liquid cooling plate 7, ensure the safety of the battery pack 002 in the energy storage box 001, and improve the safety of the use of the energy storage box 001.

[0066] In this embodiment, the air supply duct 11 extends in the height direction, and the air supply duct 11 is arranged at the rear side of the end of the liquid cooling plate 7. The air supply duct 11 is provided with an air induction plate 15 for guiding the gas to the air outlet 13. The purpose of setting the air induction plate 15 is to actively guide the cooling air to the corresponding air outlet 13, and to control the flow rate of the cooling air to each group of liquid cooling plates to be consistent as much as possible, to meet the heat dissipation consistency of each battery pack 002 as much as possible, to meet the cooling consistency of each position of the energy storage box 001, to reduce the upper and lower temperature difference in the energy storage box 001, so that the battery charging and discharging in the energy storage box 001 can be in an ideal temperature charging and discharging environment, to improve the reuse performance of waste batteries, and to improve the quality of the energy storage box 001; the air induction plate 15 is provided with a diversion hole 16 or a diversion hole 16 is formed between the air induction plate 15 and the inner wall of the air supply duct 11; so that the cooling air can diffuse to the corresponding return air outlet 14 through each group of battery packs 002 through the corresponding air outlet 13;

[0067] The number of the air outlets 13 of the air supply duct 11 is consistent with the number of the liquid cooling plates 7, and the air outlets 13 are arranged at the rear end of the liquid cooling plates 7 in a one-to-one correspondence; the number of the air induction plates 15 is consistent with the number of the air outlets 13, and the air induction plates 15 are arranged at the rear end of the air outlets 13 in a one-to-one correspondence;

[0068] The return air duct 12 extends in the height direction, and the return air duct 12 is arranged on the front side of the head end of the liquid cooling plate 7. The number of return air ports 14 of the return air duct 12 is consistent with the number of liquid cooling plates 7. The return air ports 14 are arranged at the front end of the liquid cooling plate 7 in a one-to-one correspondence with the liquid cooling plates 7.

[0069] In the present embodiment, the air inlet plate 15 is inclined downward from the back to the front, and the diverter hole 16 is provided on the air inlet plate 15. The inclined air inlet plate 15 can better enhance the initial kinetic energy of the cooling air entering the heat dissipation fin 10, and the diverter holes 16 provided on the adjacent air inlet plates 15 are staggered in the height direction. The staggered diverter holes 16 can ensure that the cooling air enters the next level at the bottom, so that the cooling air entering the next level has the initial kinetic energy to be blown to the battery pack 002 after being stored, and then diffuses downward step by step. Among them, the air inlet plate 15 at the bottom does not need to have the diverter hole 16 to directly guide the air to the corresponding battery pack for cooling.

[0070] In this embodiment, the diversion holes 16 staggered on the adjacent air duct plates 15 in the height direction have an overlapping area 17; the blowing method from top to bottom can obtain greater initial kinetic energy, which is beneficial to the heat dissipation of the battery pack 002. The setting of the overlapping area 17 can make the cooling air flowing in the height direction have sufficient wind pressure, and the cooling air sent to the heat dissipation fins 10 also has a certain wind pressure under the setting of the air duct plates 15, thereby achieving the purpose of autonomous air supply and return to each layer of battery packs.

[0071] In this embodiment, the air outlet 13 and the return air outlet 14 are arranged opposite to each other in the extension direction of the heat dissipation fin 10, the middle part of the air outlet 13 in the height direction is higher than the middle part of the air outlet 13 in the height direction, and the middle part of the air outlet 13 in the height direction is close to the heat dissipation surface;

[0072] There are a plurality of diverter holes 16 on the air induction plate 15, and the aperture size of the diverter holes 16 gradually decreases from the back to the front, and the spacing between adjacent holes gradually increases from the back to the front; the closer the diverter holes 16 are to the air outlet 13, the smaller their size and the farther their spacing are, the greater the kinetic energy of the air outlet is, ensuring the cooling capacity of the heat dissipation fins 10, and in this solution, as Figure 7 As shown, it shows the position of the diversion holes 16 on the two air guide plates 15 from top to bottom. Two air guide plates 15 are grouped together, and the stacking of the two is repeated downward. An overlapping area 17 is always reserved in the middle, so that the wind flow from top to bottom passes through each layer of air guide plates 15, and the cooling of each layer of battery packs is ensured to be consistent as much as possible.

[0073] The aperture sizes of the return air vents 14 gradually decrease from bottom to top; the setting of the return air vents 14 can actively guide the return air, improve the heat dissipation efficiency of the battery pack, and the size becomes smaller as it goes up, which can make up for the controllable temperature difference caused by insufficient output pressure of some bottom air outlets 13, further ensure the ambient temperature in the energy storage box 001, and ensure the operating temperature of each battery pack 002.

[0074] The support columns 5 include several columns arranged in the middle, on both sides and at the rear end of the battery pack 002; the air supply duct 11 is located on the longitudinal rear side of the battery pack 002, and the air supply duct 11 is roughly located in the horizontal middle of the battery pack 002, with the air supply port opened forward, and the air supply duct utilizes the current support columns 5 to directly form the air supply duct 11 in the support columns 5 at the corresponding positions, so as to be more conducive to saving costs and space, and the structure is more compact, and the width of the support columns 5 forming the air supply duct 11 is wider, so that the air supply flow rate reaches the preset requirements, and the return air duct 12 is located on the longitudinal front side of the battery pack 002, and the return air duct 12 is two symmetrically arranged at the lateral ends of the air supply duct 11, and the return air consistency good and can assist in cooling the battery pack 002 better; and the air supply duct 11 is on the rear side of the battery pack 002, the return air duct 12 is arranged on the front side of the battery pack 002, the return air port 14 is opened horizontally, and the return air port 14 faces the horizontal middle part of the battery pack 002, wherein the return air duct 12 utilizes the current supporting column 5 to directly form the return air duct 12 in the supporting column 5 at the corresponding position, so as to be more conducive to saving cost and space, and the structure is more compact and the cooling effect is better. The setting of the two groups of return air ducts 12 is more conducive to the dissipation of heat of the battery pack 002, and the heat dissipation consistency of the battery pack 002 is good, which can ensure the ambient temperature in the energy storage box 001 and the use temperature of a single group of battery packs 002.

[0075] In this embodiment, at least one liquid inlet valve controlled to be opened and closed is correspondingly provided at the liquid inlet of each group of the liquid cooling plates 7, and at least one liquid outlet valve controlled to be opened and closed is correspondingly provided at the liquid outlet of each group of the liquid cooling plates 7;

[0076] The battery pack 002 and the liquid cooling plate 7 have a temperature difference. If the temperature difference exceeds 5°C, the liquid inlet valve and the liquid outlet valve are controlled to be opened at the same time; if the temperature difference does not exceed 5°C, the liquid inlet valve and the liquid outlet valve are controlled to be closed at the same time. The temperature monitoring and the control of the liquid inlet valve and the liquid outlet valve are realized by the temperature sensor of the prior art and a computer with a corresponding control system, which will not be repeated here. Through the controlled opening and closing of the liquid inlet valve and the liquid outlet valve, the heat of the designated battery pack 002 can be accurately dissipated, and the temperature of each group of battery packs 002 can be controlled within a preset range, thereby reducing the overheating and scrapping of the battery pack 002 in the energy storage box 001 due to the inconsistent heat dissipation efficiency of the battery pack 002, and at the same time, the safety of the energy storage box 001 can be improved. The designated battery pack 002 can be cooled independently by setting the opening or closing of the liquid inlet valve, which is suitable for heterogeneous battery packs 002 and battery packs 002 in energy storage charging stations. 02 capacity difference and battery pack 002 power loss difference, is applicable to the series-parallel combination of any battery pack 002 in the energy storage box 001, has strong versatility and good safety, and the pushed and pulled support plate 3 of this scheme can adapt to the assembly and pairing of various types of battery packs 002, and can make the battery charging and discharging in the energy storage box 001 be in an ideal temperature charging and discharging environment, thereby improving the reuse performance of waste batteries and controlling the cost of recycling retired automotive power batteries; through the set liquid outlet valve, each liquid cooling plate 7 can be used independently, and when other liquid cooling plates 7 return liquid, they will not heat exchange with the non-working liquid cooling plates 7, which can ensure that the charging and discharging of other battery packs 002 are in an ideal environment.

[0077] Furthermore, a spoiler column 18 is provided in the liquid cooling chamber. The spoiler column 18 is generally columnar and supported in the liquid cooling chamber. The spoiler column 18 is located in the middle of the horizontal cross section of the liquid cooling chamber, and the middle is close to the center of the horizontal cross section of the liquid cooling chamber. The heat dissipation range of this position can be wider and more uniform, and the heat can be taken away in time to improve the heat dissipation efficiency of the battery pack 002. The purpose of setting the spoiler column 18 is also to increase the residence time of the coolant at a specified position in the liquid cooling chamber, so as to improve the cooling efficiency of the battery pack 002, so that the cooling of the battery pack 002 is more efficient;

[0078] In this solution, the top end of the spoiler column 18 in the height direction is connected to the top of the inner wall of the liquid cooling chamber, and the bottom end of the spoiler column 18 in the height direction is connected to the bottom of the inner wall of the liquid cooling chamber. On the one hand, the structural strength of the liquid cooling plate 7 itself is increased and a good structural skeleton can be provided. On the other hand, it has a large-area flow resistance effect and a better heat dissipation effect.

[0079] The spoiler column 18 has a spoiler 19 protruding toward the liquid inlet, so that the liquid inlet of the liquid cooling chamber directly cools the spoiler 19, which is more conducive to ensuring the retention time of relatively low-temperature coolant in the entire liquid cooling chamber, and can accelerate the cooling efficiency. Furthermore, the spoiler 19 is a plurality of pieces arranged at intervals. In this solution, a plurality of spoilers 19 are arranged at intervals on a horizontal cross section along a direction perpendicular to the liquid inlet of the liquid cooling chamber, so that the heat exchange area is increased and the heat dissipation efficiency is improved; and more accurately, as Figure 4 As shown, the length of the plurality of spoilers 19 gradually decreases from the middle to both sides, so that the plurality of spoilers 19 approximately form a "mountain"-shaped structure with a protruding middle portion. The aforementioned approximation means that the structure is similar. For example, the "mountain" shape is a shape that is arranged in parallel in a set direction and is high in the middle and low at both ends, which is more conducive to a clear understanding of the arrangement structure of the present solution and will not be described in detail here. The plurality of spoilers 19 arranged in this way can allow the incoming liquid to not only pass through the spoiler column 18, but also be diverted to the left and right sides horizontally, so that the heat exchange efficiency in the liquid cooling chamber is higher. Figure 7 As shown, it is a structure of a spoiler 19, wherein a middle exchange hole 20 is opened on the spoiler 19. According to the characteristics that the coolant has initial kinetic energy and continuously enters the liquid cooling chamber, combined with the spoiler 19 distributed in a "mountain" shape, the relatively high-temperature coolant is promptly diffused to both ends of the spoiler column 18 in the width direction, and combined with the setting of the flow surface 21, there is no liquid accumulation on the back of the spoiler column 18, and the function of dispersing the coolant is better. The relatively high-temperature coolant in the liquid cooling chamber can be discharged more quickly through the liquid outlet, so that the cooling effect of the liquid cooling plate 7 is better, which is more conducive to ensuring the heat dissipation of the battery pack 002 and improving the safety of the charging station energy storage box 001.

[0080] In this embodiment, the spoiler column 18 also has a flow surface 21 protruding toward the liquid outlet. The purpose of setting the flow surface 21 is to reduce the coolant collection at the liquid outlet of the liquid cooling chamber, which is more conducive to quickly discharging the relatively high-temperature coolant from the liquid cooling chamber, thereby improving the heat dissipation efficiency. The flow surface 21 is continuous and protrudes toward the liquid outlet in a curved surface; wherein the center of the curved surface is directly opposite to the center of the liquid outlet, so that the coolant is evenly discharged; Figure 4 As shown, the line connecting the liquid inlet and the liquid outlet of the liquid cooling chamber is parallel to the length direction of the energy storage box 001, the liquid inlet is on the right side of the liquid cooling plate 7, and the liquid outlet is on the left side of the liquid cooling plate 7, and the liquid inlets and liquid return ports corresponding to the respective groups of liquid cooling plates 7 are respectively built into the column of the battery pack 002 bracket through the liquid supply pipe to save cost and space;

[0081] In this embodiment, the spoiler column 18 is provided with functional holes 22, and there are several functional holes 22. The functional holes 22 are spaced apart on the spoiler column 18 in the height direction, and the functional holes 22 are located between adjacent spoilers 19; the purpose of setting the functional holes 22 is to provide a diffusion branch for the coolant passing through the spoiler column 18, so that part of the coolant is directly discharged to the back of the spoiler column 18, combined with the curved flow surface 21, the flow efficiency of the relatively high-temperature coolant in the liquid cooling chamber can be improved, that is, to ensure that the relatively low-temperature coolant is efficiently gathered at the position of the spoiler column 18, and the relatively high-temperature coolant is efficiently discharged. On the one hand, the loss of the relatively low-temperature coolant is prevented, so that the cooling capacity of the liquid cooling plate 7 is improved, and on the other hand, the discharge efficiency of the relatively high-temperature coolant is improved, and the local heat concentration of the liquid cooling plate 7 is reduced, so that the coolant temperature inside the liquid cooling plate 7 is always maintained within the set range, and the overall cooling efficiency of the liquid cooling plate 7 is higher.

[0082] In the present embodiment, the density of the functional holes 22 distributed in the middle of the spoiler column 18 in the height direction exceeds the density distributed at the two ends of the spoiler column 18 in the height direction; so that the flow rate in the middle of the spoiler column 18 exceeds the flow rate at the upper and lower ends, and the liquid cooling chamber forms a structure in which the flow velocity is large in the middle and small at the ends, and the heat exchange effect is better; further, the aperture size of the functional hole 22 is smaller than the aperture size of the middle exchange hole 20, so as to ensure that the coolant can be gathered at the position of the spoiler column 18 to control the cooling effect. More specifically, the functional hole 22 and the middle exchange hole 20 in this scheme are both circular, and the aperture diameter size of the functional hole 22 is 0.2 to 0.5 times the aperture diameter size of the middle exchange hole 20. The smaller the size of the functional hole 22 is controlled, the greater the amount of coolant flowing through the lateral ends of the battery pack 002 is, so as to control the cooling effect, which will not be repeated here.

[0083] In this embodiment, a liquid inlet spoiler 23 and a liquid outlet spoiler 24 are further provided in the liquid cooling chamber; the liquid inlet spoiler 23 and the liquid outlet spoiler 24 respectively support the upper inner wall and the lower inner wall of the liquid cooling chamber in this embodiment, and have the function of assisting heat dissipation while playing the supporting function, and also have the function of regulating liquid confluence;

[0084] Further, the liquid inlet spoiler 23 is composed of a plurality of pieces, and the plurality of liquid inlet spoiler 23 is approximately distributed in an "eight" shape inside the liquid inlet 8 of the liquid cooling chamber, and the "eight"-shaped narrow opening formed by the plurality of liquid inlet spoiler 23 faces the liquid inlet 8 of the liquid cooling chamber; the liquid outlet spoiler 24 is composed of a plurality of pieces, and the plurality of liquid outlet spoiler 24 is approximately distributed in an "eight" shape inside the liquid outlet 9 of the liquid cooling chamber, and the "eight"-shaped narrow opening formed by the plurality of liquid outlet spoiler 24 faces the liquid outlet 9 of the liquid cooling chamber. In this way, the liquid inlet spoiler 23 and the liquid outlet spoiler 24 form a structure approximately in a rhombus shape, and the spoiler column 18 is located at the center of the rhombus structure, and the direction close to the spoiler column 18 is the inner side.

[0085] In this embodiment, Figure 4 As shown, the liquid inlet spoiler 23 includes a left spoiler fin I distributed on the left side of the "eight" shape and a right spoiler fin I distributed on the right side of the "eight" shape;

[0086] Each left spoiler fin I and each right spoiler fin I are arranged opposite to each other to form a front spoiler fin group in an "eight" shape, and the front spoiler fin group is divided into a plurality of groups, and the plurality of groups of the front spoiler fin groups are distributed on the inner side of the liquid inlet in a nested manner along the liquid inlet direction of the liquid inlet; among the front spoiler fin groups distributed on the inner side of the liquid inlet in a nested manner, the next-stage front spoiler fin group is located at the rear side of the previous-stage front spoiler fin group;

[0087] The liquid outlet spoiler 24 includes a left spoiler fin II distributed on the left side of the "eight" shape and a right spoiler fin II distributed on the right side of the "eight" shape;

[0088] Each left spoiler fin II and each right spoiler fin II are arranged relative to each other to form a group of rear spoiler fin groups in the shape of an "eight", and the rear spoiler fin groups are divided into several groups, and the several groups of rear spoiler fin groups are distributed on the inner side of the liquid outlet in a nested manner along the liquid discharge direction of the liquid outlet; in the rear spoiler fin groups distributed on the inner side of the liquid outlet in a nested manner, the next-level rear spoiler fin group is located on the front side of the previous-level rear spoiler fin group.

[0089] This program Figure 3 In the figure, the structure of the overall liquid cooling plate 7 is symmetrical with respect to the line connecting the center of the liquid inlet and the center of the liquid outlet. The nesting form of the front spoiler fin group and the rear spoiler fin group is gradually expanded outward and backward, forming a layer-by-layer stacking method similar to the tile roof in a house building, and has the function of guiding the coolant so that part of the coolant actively converges to the position where the spoiler column 18 is set, thereby achieving the purpose of high-efficiency cooling.

[0090] In this embodiment, the liquid inlet spoiler 23 is provided with a first exchange hole, and the liquid outlet spoiler 24 is provided with a second exchange hole. Figure 7As shown, the structures of the liquid inlet spoiler 23, the liquid outlet spoiler 24 and the middle spoiler 19 are consistent, that is, the first exchange hole and the second exchange hole are two rows distributed correspondingly on the liquid inlet spoiler 23 and the liquid outlet spoiler 24, and this structure can ensure convergence. The structures of the liquid inlet spoiler 23, the liquid outlet spoiler 24 and the spoiler 19 are roughly the same. This scheme only shows the structure of the spoiler 19, which is not repeated here; because the arrangement position of the liquid inlet spoiler 23 and the liquid outlet spoiler 24 of this scheme is close to the corner position of the liquid cooling chamber, and the corner position happens to be the area where the coolant is difficult to collect and remove, so the first exchange hole and the second exchange hole opened in this scheme, when there is internal pressure in the liquid cooling chamber, the coolant passing through the first exchange hole and the second exchange hole is approximately jet-like and diffuses to the corresponding corner position, which can make the efficiency of liquid heat exchange higher.

[0091] In this embodiment, the heat dissipation fins 10 are multiple pieces, and the multiple pieces of heat dissipation fins 10 are arranged in parallel along the set direction I, and the height of the multiple pieces of heat dissipation fins 10 along the set direction I gradually increases from the middle to both sides;

[0092] like Figure 2 and Figure 6 As shown, the set direction is the length direction of the energy storage box 001, the heat dissipation fins 10 extend along the depth direction of the battery pack 002 and are arranged in parallel with each other in the horizontal direction of the battery pack 002, and a plurality of the heat dissipation fins 10 approximately form a wind passing area with a concave middle portion in the cross section in the height direction; the air outlet 13 is directly opposite to the rear end of the heat dissipation fin 10 in the horizontal direction, and the top edge connection line of a plurality of the heat dissipation fins 10 is an arc with a concave middle portion and symmetrical sides. This structure can provide a favorable and fast wind passing channel under air cooling conditions, and can quickly take away the heat of the heat dissipation fins 10 under wind pressure conditions, thereby improving the heat dissipation capacity of the liquid cooling plate 7.

[0093] In this embodiment, the ends of the plurality of heat dissipating fins 10 along the set direction I gradually shrink inward from both sides to the middle; that is, the lengths of the plurality of heat dissipating fins 10 gradually increase from the middle to both sides, and the plurality of heat dissipating fins 10 approximately form a buffer zone with the ends recessed inward in the horizontal cross section; the buffer zone faces the air outlet 13, and the spacing of the plurality of heat dissipating fins 10 along the set direction I gradually decreases from the middle to both ends, so as to form a structure with better heat dissipation capacity in conjunction with the overwinding zone. The buffer zone in this solution is opposite to the air outlet 13, and the front end connecting line of the plurality of heat dissipating fins 10 is an arc that is recessed inward in the middle and symmetrical on both sides. The buffer zone can stabilize the wind pressure passing through the heat dissipating fins 10 and reduce the direct wind noise, while meeting the cooling requirements for the battery pack 002.

[0094] The specific structure and distribution of the heat dissipation fins 10 of this solution, together with the specific structure of the air outlet 13 and the return air outlet 14, make the air flow velocity through the horizontal middle part of the battery pack 002 faster, and the internal pressure in the horizontal middle part of the battery pack 002 lower. Under the conditions of negative pressure on both sides of the front end and positive pressure at the rear end, the cooling efficiency of the battery pack 002 is higher, and the structure with the air outlet 13 on the top and the return air outlet 14 on the bottom can further improve the cooling efficiency of the battery pack 002.

[0095] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A whole pack of retired vehicle power batteries for energy storage and charging station assembly, characterized by: Including energy storage box, battery pack placement assembly and battery pack cooling assembly; The battery pack placement assembly includes a support frame and a pallet, wherein the support frame is arranged in the energy storage box, and the pallet is driven to be taken out of or put back from the support frame; The battery pack cooling assembly includes a liquid cooling plate disposed on the top surface of the battery pack; The liquid cooling plate has a liquid cooling cavity, and the liquid cooling cavity has a liquid inlet connected to a liquid supply end of a battery pack liquid cooling system and a liquid outlet connected to a liquid return end of the battery pack liquid cooling system; The battery pack cooling assembly also includes an air supply duct connected to an air outlet of the air conditioning cooling system and a return air duct connected to an air return outlet of the air conditioning cooling system; The liquid cooling plate also has a conducting surface and a heat dissipation surface opposite to each other, the conducting surface is attached to the top surface of the battery pack, and the heat dissipation surface is provided with heat dissipation fins; The air supply duct has an air outlet, and the air return duct has an air return outlet, and the air outlet and the air return outlet are arranged opposite to each other in the extension direction of the heat dissipation fins; The direction of the coolant flowing in the liquid cooling cavity intersects with the extension direction of the heat dissipation fins; The pallets are arranged in groups on the support frame at intervals along the height direction. The energy storage box has a plurality of battery packs stacked in the height direction. The number of battery packs is consistent with the number of pallets. Each group of battery packs is correspondingly arranged on a group of pallets, so that the battery packs can be driven to be taken out of or put back into the support frame. A group of liquid cooling plates is correspondingly arranged on each group of battery packs; The air supply duct extends in the height direction, and the air supply duct is arranged at the rear side of the end of the liquid cooling plate. An air induction plate for guiding the gas to the air outlet is provided in the air supply duct, and a flow diversion hole is opened on the air induction plate or a flow diversion hole is formed between the air induction plate and the inner wall of the air supply duct; The number of air outlets of the air supply duct is consistent with the number of liquid cooling plates, and the air outlets are arranged at the rear end of the liquid cooling plates in a one-to-one correspondence; the number of the air induction plates is consistent with the number of air outlets, and the air induction plates are arranged at the rear end of the air outlets in a one-to-one correspondence; The return air duct extends in the height direction, the return air duct is arranged at the front side of the head end of the liquid cooling plate, the number of return air ports of the return air duct is consistent with the number of liquid cooling plates, and the return air ports are arranged at the front end of the liquid cooling plate in a one-to-one correspondence with the liquid cooling plates.

2. The energy storage charging station assembly for recycling the entire package of retired vehicle power batteries according to claim 1 is characterized by: The energy storage box is provided with a storage door at the longitudinal front end thereof which is controlled to be opened or closed, and the support plate is driven to move in the direction in which the storage door is provided, so that the battery pack carried by the support plate is taken out from the support frame; The support plate is inclined downward from front to back, and the inclination angle α does not exceed 3°.

3. The energy storage charging station assembly for recycling the whole package of retired vehicle power batteries according to claim 1 is characterized by: The liquid inlet of each group of the liquid cooling plates is provided with at least one liquid inlet valve which is controlled to be opened and closed, and the liquid outlet of each group of the liquid cooling plates is provided with at least one liquid outlet valve which is controlled to be opened and closed; The battery pack and the liquid cooling plate have a temperature difference, and if the temperature difference exceeds 5° C., the liquid inlet valve and the liquid outlet valve are controlled to open simultaneously; If the temperature difference does not exceed 5°C, the liquid inlet valve and the liquid outlet valve are controlled to be closed at the same time.

4. The energy storage charging station assembly for recycling the whole package of retired vehicle power batteries according to claim 1 is characterized by: The air induction plate is inclined downward from the back to the front, and the diversion holes are provided on the air induction plate. The diversion holes provided on adjacent air induction plates are staggered in the height direction; the diversion holes staggered on adjacent air induction plates in the height direction have an overlapping area.

5. The energy storage charging station assembly for recycling the whole package of retired vehicle power batteries according to claim 4 is characterized in that: There are a plurality of diversion holes on the air induction plate, the apertures of the plurality of diversion holes gradually decrease from the back to the front, and the spacing between adjacent holes gradually increases from the back to the front; The aperture sizes of the plurality of return air vents gradually decrease from bottom to top.

6. The energy storage charging station assembly for recycling a whole pack of retired vehicle power batteries according to claim 1 is characterized in that: A spoiler column is arranged in the liquid cooling cavity. The spoiler column is located in the middle of the horizontal section of the liquid cooling cavity. The spoiler column has a spoiler plate protruding toward the liquid inlet. The spoiler plates are a plurality of plates arranged at intervals. The spoiler column also has a flow surface protruding toward the liquid outlet.

7. The energy storage charging station assembly for recycling the entire package of retired vehicle power batteries according to claim 6 is characterized by: The spoiler column is provided with a plurality of functional holes, the plurality of functional holes are distributed on the spoiler column at intervals in the height direction, and the functional holes are located between adjacent spoilers; The density of the functional holes distributed in the middle of the spoiler column in the height direction exceeds the density of the functional holes distributed at both ends of the spoiler column in the height direction.

8. The energy storage charging station assembly for recycling the entire package of retired vehicle power batteries according to claim 6 is characterized by: The liquid cooling chamber is also provided with a liquid inlet spoiler and a liquid outlet spoiler; The liquid inlet spoiler is a plurality of pieces, and the plurality of liquid inlet spoiler pieces are approximately distributed in an "eight" shape on the inner side of the liquid inlet of the liquid cooling chamber, and the "eight"-shaped narrow opening formed by the plurality of liquid inlet spoiler pieces faces the liquid inlet of the liquid cooling chamber; The liquid outlet spoiler is composed of a plurality of pieces, and the plurality of pieces of the liquid outlet spoiler are distributed in an approximately "eight" shape on the inner side of the liquid outlet of the liquid cooling chamber, and the "eight"-shaped narrow opening formed by the plurality of pieces of the liquid outlet spoiler faces the liquid outlet of the liquid cooling chamber.

9. The energy storage charging station assembly for recycling the entire package of retired vehicle power batteries according to claim 8 is characterized by: The liquid inlet spoiler comprises a left spoiler fin I distributed on the left side of the "eight" shape and a right spoiler fin I distributed on the right side of the "eight" shape; Each left spoiler fin I and each right spoiler fin I are arranged opposite to each other to form a front spoiler fin group in an "eight" shape, and the front spoiler fin group is divided into a plurality of groups, and the plurality of groups of the front spoiler fin groups are distributed on the inner side of the liquid inlet in a nested manner along the liquid inlet direction of the liquid inlet; in the front spoiler fin groups distributed on the inner side of the liquid inlet in a nested manner, the next-stage front spoiler fin group is located on the rear side of the previous-stage front spoiler fin group; The liquid outlet spoiler comprises a left spoiler fin II distributed on the left side of the "eight" shape and a right spoiler fin II distributed on the right side of the "eight" shape; Each left spoiler fin II and each right spoiler fin II are arranged relative to each other to form a group of rear spoiler fin groups in the shape of an "eight", and the rear spoiler fin groups are divided into a plurality of groups, and the plurality of groups of rear spoiler fin groups are distributed on the inner side of the liquid outlet in a nested manner along the liquid outlet direction; in the rear spoiler fin groups distributed on the inner side of the liquid outlet in a nested manner, the next-level rear spoiler fin group is located on the front side of the previous-level rear spoiler fin group.

10. The energy storage charging station assembly for recycling the whole package of retired vehicle power batteries according to claim 1 is characterized by: The heat dissipation fins are a plurality of fins, and the plurality of heat dissipation fins are arranged in parallel along a set direction I, and the heights of the plurality of heat dissipation fins along the set direction I gradually increase from the middle to both sides; The ends of the plurality of heat dissipation fins gradually shrink inward from both sides to the middle along the set direction I; The spacing between the heat dissipation fins along the set direction I gradually decreases from the middle to both ends.

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